Clinical value of electrocardiogram in risk stratification of patients with non-ST segment elevation acute coronary syndrome / 中国医学装备

ABSTRACT

Objective:To investigate the clinical value of electrocardiogram in risk stratification of patients with non-ST segment elevation acute coronary syndrome(ACS).Methods: According to the change of electrocardiogram, 260 patients with non-ST segment elevation ACS were divided into four groups ECG-undiagnosed group (n=22), T-wave inversion group (ST-segment depression group), ST-segment depression group (n=118) and normal electrocardiogram group(n=80). All patients were treated with conventional 18-lead electrocardiogram and troponin I(TnI)detection in the four groups. The incidence of cardiovascular events during and after hospitalization was observed. Results: The complex cardiovascular events and recurrent angina attacks in ST segment depression group increased significantly than that in normal ECG group. The difference was statistically significant (x2=5.723,x2=15.680;P<0.05). Multivariate logistic regression analysis showed that TnI positive factors predict the independent value of composite cardiovascular events higher.Conclusion:The patients with ST segment elevation acute coronary syndrome can effectively carry out risk stratification by ECG ST-segment changes and TnI levels, and predict the cardiovascular events. It has higher clinical application value and independent predictive value of TnI positive.